Question 1

In the mitochondrion's outer membrane, enzymes and other proteins stockpile which ions?

Accepted Answer

A)  oxygen 
B)  calcium 
C)  hydrogen 
D)  sodium 
E)  potassium 
A)  oxygen 
B)  calcium 
C)  hydrogen 
D)  sodium 
E)  potassium

Question 2

Which of the following is NOT a form of active transport?

Accepted Answer

A)  sodium-potassium pump 
B)  endocytosis 
C)  exocytosis 
D)  diffusion 
E)  ATP pump 
A)  sodium-potassium pump 
B)  endocytosis 
C)  exocytosis 
D)  diffusion 
E)  ATP pump

Question 3

Selecting the Exception Three of the four answers listed below are parts of a common molecule. Select the exception.

Accepted Answer

A)  phosphate group 
B)  adenine 
C)  deoxyribose 
D)  ribose 
A)  phosphate group 
B)  adenine 
C)  deoxyribose 
D)  ribose

Question 4

The ultimate electron acceptor in aerobic respiration is

Accepted Answer

A)  NAD+. 
B)  CO2. 
C)  ADP. 
D)  NADP+. 
E)  O2. 
A)  NAD+. 
B)  CO2. 
C)  ADP. 
D)  NADP+. 
E)  O2.

Question 5

The smooth endoplasmic reticulum stores and releases calcium ions in which organ?

Accepted Answer

A)  the liver 
B)  the pancreas 
C)  the spleen 
D)  the kidneys 
E)  skeletal muscle 
A)  the liver 
B)  the pancreas 
C)  the spleen 
D)  the kidneys 
E)  skeletal muscle

Question 6

ATP

Accepted Answer

A)  can be produced by endocytosis. 
B)  is the by-product of the biosynthesis of organic compounds such as glucose. 
C)  is produced in greatest amounts during anaerobic respiration. 
D)  is released in aerobic respiration. 
E)  is released in anaerobic respiration. 
A)  can be produced by endocytosis. 
B)  is the by-product of the biosynthesis of organic compounds such as glucose. 
C)  is produced in greatest amounts during anaerobic respiration. 
D)  is released in aerobic respiration. 
E)  is released in anaerobic respiration.

Question 7

The membrane proteins responsible for distinguishing "self" from "nonself" are which of the following?

Accepted Answer

A)  channel 
B)  recognition 
C)  receptor 
D)  carrier 
E)  mosaic 
A)  channel 
B)  recognition 
C)  receptor 
D)  carrier 
E)  mosaic

Question 8

Which three things do all living cells have in common?

Accepted Answer

A)  a nucleus, cytoplasm, and a cell wall 
B)  cytoplasm, a cell wall, and lysosomes 
C)  a nucleus, ribosomes, and a cell membrane 
D)  DNA, a cell membrane, and a nucleus 
E)  a plasma membrane, DNA, and cytoplasm 
A)  a nucleus, cytoplasm, and a cell wall 
B)  cytoplasm, a cell wall, and lysosomes 
C)  a nucleus, ribosomes, and a cell membrane 
D)  DNA, a cell membrane, and a nucleus 
E)  a plasma membrane, DNA, and cytoplasm

Question 9

When glucose is used as the energy source, the largest amount of ATP is produced in

Accepted Answer

A)  glycolysis. 
B)  acetyl-CoA formation. 
C)  the Krebs cycle. 
D)  substrate-level phosphorylation. 
E)  electron transport and oxidative phosphorylation. 
A)  glycolysis. 
B)  acetyl-CoA formation. 
C)  the Krebs cycle. 
D)  substrate-level phosphorylation. 
E)  electron transport and oxidative phosphorylation.

Question 10

These contain enzymes that digest various substances.

Accepted Answer

A)  mitochondria 
B)  Golgi bodies 
C)  nuclei 
D)  ribosomes 
E)  lysosomes 
A)  mitochondria 
B)  Golgi bodies 
C)  nuclei 
D)  ribosomes 
E)  lysosomes

Question 11

The type of microscope that uses two or more glass lenses to refract light in order to enlarge an image is a(n)

Accepted Answer

A)  compound light microscope. 
B)  electron microscope. 
C)  transmission electron microscope. 
D)  scanning electron microscope. 
E)  scanning tunneling microscope. 
A)  compound light microscope. 
B)  electron microscope. 
C)  transmission electron microscope. 
D)  scanning electron microscope. 
E)  scanning tunneling microscope.

Question 12

During enzyme catalyzed reactions, substrate is a synonym for

Accepted Answer

A)  end products. 
B)  by-products. 
C)  enzymes. 
D)  reactants. 
E)  proteins. 
A)  end products. 
B)  by-products. 
C)  enzymes. 
D)  reactants. 
E)  proteins.

Question 13

Which of the following is an example of a prokaryotic cell?

Accepted Answer

A)  algae 
B)  bacteria 
C)  human 
D)  plant 
E)  fungus 
A)  algae 
B)  bacteria 
C)  human 
D)  plant 
E)  fungus

Question 14

How many DNA molecules are found in a human cell?

Accepted Answer

A)  1,000 
B)  46 
C)  100 
D)  150 
E)  10,000 
A)  1,000 
B)  46 
C)  100 
D)  150 
E)  10,000

Question 15

Excess proteins are converted directly to

Accepted Answer

A)  glucose. 
B)  fatty acids. 
C)  ammonia. 
D)  amino acids. 
E)  glycogen. 
A)  glucose. 
B)  fatty acids. 
C)  ammonia. 
D)  amino acids. 
E)  glycogen.

Question 16

The DIRECT yield of ATP from the electron transport system is

Accepted Answer

A)  2. 
B)  8. 
C)  32. 
D)  36. 
E)  48. 
A)  2. 
B)  8. 
C)  32. 
D)  36. 
E)  48.

Question 17

Before a glucose molecule can be broken down to release energy,

Accepted Answer

A)  one ATP molecule must be added to glucose. 
B)  two phosphate groups must be attached to glucose. 
C)  three ATP molecules must be added to glucose. 
D)  one ATP molecule must be taken away from glucose. 
E)  two ATP molecules must be taken away from glucose. 
A)  one ATP molecule must be added to glucose. 
B)  two phosphate groups must be attached to glucose. 
C)  three ATP molecules must be added to glucose. 
D)  one ATP molecule must be taken away from glucose. 
E)  two ATP molecules must be taken away from glucose.

Question 18

Selecting the Exception Four of the five answers listed below are familiar organelles in the cytoplasm. Select the exception.

Accepted Answer

A)  nucleolus 
B)  mitochondria 
C)  ribosome 
D)  Golgi apparatus 
E)  chloroplast 
A)  nucleolus 
B)  mitochondria 
C)  ribosome 
D)  Golgi apparatus 
E)  chloroplast

Question 19

How long does it take liver cells to detoxify the alcohol in one drink?

Accepted Answer

A)  two hours 
B)  thirty minutes 
C)  one hour 
D)  four hours 
E)  three hours 
A)  two hours 
B)  thirty minutes 
C)  one hour 
D)  four hours 
E)  three hours

Question 20

Cells active in secreting enzymes would likely exhibit a higher than usual amount of

Accepted Answer

A)  osmosis. 
B)  exocytosis. 
C)  lipid bilayers in the plasma membranes. 
D)  endocytosis. 
E)  receptor proteins. 
A)  osmosis. 
B)  exocytosis. 
C)  lipid bilayers in the plasma membranes. 
D)  endocytosis. 
E)  receptor proteins.

Exam 3: Cells and How They Work

In the mitochondrion's outer membrane, enzymes and other proteins stockpile which ions?

Which of the following is NOT a form of active transport?

Selecting the Exception Three of the four answers listed below are parts of a common molecule. Select the exception.

The ultimate electron acceptor in aerobic respiration is

The smooth endoplasmic reticulum stores and releases calcium ions in which organ?

ATP

The membrane proteins responsible for distinguishing "self" from "nonself" are which of the following?

Which three things do all living cells have in common?

When glucose is used as the energy source, the largest amount of ATP is produced in

These contain enzymes that digest various substances.

The type of microscope that uses two or more glass lenses to refract light in order to enlarge an image is a(n)

During enzyme catalyzed reactions, substrate is a synonym for

Which of the following is an example of a prokaryotic cell?

How many DNA molecules are found in a human cell?

Excess proteins are converted directly to

The DIRECT yield of ATP from the electron transport system is

Before a glucose molecule can be broken down to release energy,

Selecting the Exception Four of the five answers listed below are familiar organelles in the cytoplasm. Select the exception.

How long does it take liver cells to detoxify the alcohol in one drink?

Cells active in secreting enzymes would likely exhibit a higher than usual amount of

Learning About Human Biology

Chemistry of Life

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA, Genes, and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

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